The special, featuring contributions from Matt Smith, Jenna Coleman, David Tennant, Paul McGann and more will air on Monday 18th November at 8pm on BBC Three, and will last for two hours. The BBC have released a synopsis for the special:
Matt Smith and Jenna Coleman celebrate the 50th anniversary of the space-travelling Time Lord and take an in-depth look at of one of the most intriguing fictional characters of all time. With the 50th anniversary episode, The Day of the Doctor, about to hit our screens there's a look at all eleven incarnations of the Doctor and their most famous scenes and storylines, an exploration of the many sides to the Doctor and asking what is he really like.The Ultimate Guide to Doctor Who will follow BBC Three's first 50th anniversary show, Greatest Monsters & Villains Weekend, which begins on Friday 15th November at 7pm.
Plus, a look at The Doctor's many travelling companions and adversaries over the years and how they all contribute to creating the longest running sci-fi show of all time. Featuring David Tennant, Paul McGann, Sylvester McCoy, Noel Clarke, Rick Edwards, Konnie Huq, McFly, Joel Dommett and many more, it's the best preparation possible for the 50th anniversary episode.
[Source: Blogtor Who]